Distributing-pump.



P. W. KNOTT. DISTRIBUTING PUMP.

IAFPPLIGATION FILED AUG. 18, 1906. 5, 77; Patented June 20, 1911.

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I nventor Tan By deity F. W. KNOTT. DISTRIBUTING PUMP. APPLICATION rmmAUG. 18, 1906.

995,877. I Patented June 20, 1911.

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marrnn STATES PATENT @FFIQE.

FRANK W. KNOTT, 013 DETROIT, MICHIGAN, ASSIGNOR TO THE VTINKLEY COMPANY,OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

DISTRIBUTING-PUMP.

Specification of Letters Patent.

Patented June 20, 1911.

Application filed August 18, 1906. Serial No. 331,132.

To all whom it may concern:

Be it known that I, FRANK W. KNOTT, a citizen of the United States, andresident of Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Distributing-Pumps, ofwhich the following is a full, clear, and exact specification.

This invention relates to improved pump devices, in which pumpingmechanism is combined with means for distributing the pumped materialindependently and in varying quantities to a plurality of outlets.

This invention may be adapted to various uses.

The embodiment of the invent-ion herein shown and described isespecially adapted for pumping and distributing oil to the differentbearings of an automobile. In this and in many other machines, it isimportant to provide for the certain delivery of a definite anddeterminable amount of oil to each of several bearings of the machine.Some of these bearings require much more oil than is required by otherbearings. Moreover, since in most cases the amount of oil required foreach bearing varies at different times, and must be determined byobservation and experiment, means are provided for varying the deliveryat each outlet, during the operation of the machine.

Figure 1 of the drawings is a plan view, and Fig. 2 is a side view onsection taken on the line 22 of Fig. 1, showing my inven tion as adaptedfor automatic service. Figs. 3 and 1 are plan views in section taken onthe line 3t of Fig. 2, showing the pumping mechanism in two differentpositions. Fig. 3 shows the parts during the discharge stroke, .whileFig. 4 shows the parts just after the intake or suction stroke. Fig. 5is a fragmentary side view in section showing a modificationapplicableto the pump carriage 21.

The operating parts are preferably inclosed in a casing 6, provided witha tight cover 7, the casing being provided with means for attaching itto the automobile or other machine upon which it is to be used. The oilor other material to be pumped is conveyed to the interior of the casingthrough a pipe 8, thence flowing through openings 9 and one or morepassages 10 to the annular channel 11, from which the oil flows throughthe passages 12 to the several ports 18,-

from which the oil is taken in succession by the pumping mechanism,aswill be hereinafter explained. The casing is also supplied with aplurality of outlet passages 15, communicating with outlet ports 16,through which the oil is independently discharged to the respectivebearings, by means of pipes leading from and secured to the casing inany convenient way, as by the screw-thread ed nipples 17. The inletports 13 and the outlet ports 16 are arranged in proper situation andsequence to communicate with the intake and discharge openings of thepump mechanism. In the present instance, in which the intake anddischarge to and from the pump mechanism is made through a singlepassage 20, the inlet ports 13 and the outlet ports 16 are arranged inalternate succession, in a single path, in or adjacent to the pathway ofthe opening 20. In the present instance also these ports are arranged ina circle, because of the fact that the pumping mechanism, including theopening 20, revolves around a fixed center.

The ports 13 and 16 may as herein shown be elongated in the generaldirection of travel of the pump opening 20, in order that that pumpopening may remain in register with those openings throughout therespective working movements of the pump plunger. This is especiallytrue where the rotary movement of the pump carriage 21 is continuous.

The pump mechanism, best shown in Figs. 3 and 1, is mounted forrevolving movement upon a pump carriage 21, which is mounted forrotative movement in the casing 6, and its cover 7, by means of thegudgeons 22 and 2-3, respectively. The main portion of the pump carriageis in the form of a circular disk which overlies the various channelsand passages for oil made in the upper side of the lower wall of thecasing 6, the disk making an approximately close joint with that lowerwall, so as to practically confine the flow of oil to the passages andports, the disk being preferably also pressed downwardly into closecontact with the lower wall of the casing by means of the spring 25.

The pump carriage may be driven in various ways, according to thecharacter and position of the mechanism from which it is driven. In thepresent instance, the rotating movement of the carriage is impartedthrough the rotating worm shaft 26, provided with the worm thread 27which meshes with the peripheral teeth of a worm gear 28, which isconcentric with and fixed to the pump carriage 21, and may be integraltherewith or be separately attached thereto by means of the bosses 29,provided with the screw holes 30. In order to prevent the escape of oilthrough the bearing for the worm shaft 26, the latter extends into thecasing through a stu'liing box, as shown in Figs. 1 and 3.

The pump mechanism shown herein is mounted for revolving movement uponand with the pump carriage 21, and consists of a pump barrel 32, whichmay be integral with, or removably attached to the pump carriage 21.

The pump barrel is provided with a piston or plunger 33 mounted forlengthwise movement in the pump barrel. The combined intake anddischarge opening 20 of the pump is located at the bottom end of thepump barrel, as shown in Figs. 3 and 4, communicating alternately withthe inlets 13 and the outlets 16, as the pump mechanism revolves withthe rotating pump carriage 21.

The pump mechanism is operated by the rotation of the pump carriage, tomove the plunger 33 back and forth in proper relation, as the pumpopening 20 registers with the ports 13 and 16, the plunger being drawnback, as shown in Fig. 4, when the opening 20 is in register with one ofthe portsv 13, and being pushed inwardly, as shown in Fig. 3, when theopening 20 is in register with one of the ports 16, thus serving to takein oil from each of the ports 13 and discharge oil through thesucceeding ports 16. As the carriage rotates the left hand end 34 of theplunger 33 is carried against the faces of the lugs 35, extendinginwardly from the side wall of the case, as shown in Fig. 3, one or bothof the coacting faces of the plunger and of the lug being inclinedrelative to the direction of movement. A lever 36 is pivotally mountedupon the carriage in any convenient way, as by the bearings 37 and 38.One end 39 of the lever engages with the pump plunger 33, while theother end 40 of the lever projects forwardly into engaging relation withthe points of adjustable screws 42, which project inwardly through theside wall of the casing 6 above the lugs 35, the plane of the lever end40 being above the plane of the end 34 of the piston and above the planeof the lugs 35, so as to pass clear of them.

The degree of inclination of the end 40 of the lever 37 may be varied tocorrespondingly vary the time or speed of the lever movement. Byadjusting the several screws 42,'the drawing back movement of the pumpplunger 30 may be varied from full stroke down to nothing, thus servingto vary the distribution of oil to each outlet or bearing, independentlyof any other outlet or bearing, and all by the operation of a singlepump.

It is obviously immaterial whether the adjusting devices are applied tothe intake or the discharge stroke of the pump. In the present instanceillustrated herein, the pump plunger is pushed inwardly to uniformposition by the fixed lugs 35, the variation being applied to thebackward or intake stroke of the plunger, by means of the adjustablescrews 42. Obviously however, adjustable screws similar to the screws 42may be substituted for the fixed lugs 35; or the lugs be substituted forthe screws.

It is not an essential feature of this invention that the mechanism beentirely inclosed as herein shown; but for most purposes, andparticularly for use upon automobiles, .it is desirable thus to entirelyinclose the moving parts. The shaft 26 or any equivalent operatingmedium such as a connecting rod may also be inclosed in a pipe. hen theparts are thus inclosed, it is desirable to have some of the movingparts at least exposed to view, in order to enable the operator toreadily observe at any time, whether the mechanism is in operation andworking properly. To this end, I provide a sight opening 44 preferablysurrounded by a raised hub 45, and containing a glass sight piece heldtherein in any convenient way, as by means of the ring nut 46.

The operation of this device is as follows :--A flow of oil beingprovided through the pipe 8, it passes through the passages 9 and 10 tothe annular channel 11, distributing thence through the passages 12 tothe successive inlet: ports 13. The rotations of the pump carriage carrythe inclined end 40 of the lever 36 against the abutment screws 42, soas to push the lever 36 inwardly and draw the pump plunger 33backwardly, thus making its intake stroke, while the pump opening 20 isin register with the inlet port 13, the elongation of that port enablingthe inflow of oil to the pump to continue to any desired extent duringthe backward or suction stroke of the plunger. This position of theparts is shown in Fig. 4. As the pump carriage continues to rotate, theend 34 of the plunger is carried against the lugs 35, as shown in Fig.3, thereby moving the plunger through its discharging stroke, duringwhich time the opening 20, which then serves as the discharge opening,is in register with the outlet 16 and thereby forcing oil to thehearing, which is connected to that particular port, the elongation ofthe port 16 being made sufficient to register with the opening 20,preferably through the entire discharging stroke of the pump. Havingthus completed its intake and discharge movements with relation to oneof the inlet ports 13 and its succeeding outlet port 16, the continuedrotation of the pump carriage carries the pump mechanism against thesucceeding screw 42, and abutment 35, thus repeating the operations ofthe pump mechanism for each of the outlets, and thereby forcing therequired amount of oil in regular succession to each of thebearingsconnected with the said outlets. By thus arranging the inlets andoutlets in alternate succession in the same circular path, I am enabledto utilize the single pump opening 20 for both the intake and thedischarge functions of the pump.

The method of driving the rotating carriage will depend very largelyupon its environment, the character of the mechanism with which it is tobe used, and upon its position with relation to that mechanism. Whenlocated at one side of that mechanism, it will generally be foundconvenient to employ a worm and worm wheel as herein shown.

In instances where it may be found practicable to predetermine therequired flow of oil to each of the bearings without providing forvariation of the flow, the adjustable screws 42 may be dispensed with,and fixed abutments similar to the abutments 35 may be employed formoving the lever 36 to draw back the pump on the intake strokes. Even inthat case, however, a larger amount of oil may regularly be delivered tosome bearings than to the other bearings, by varying the heights of therespective abutments for the intake strokes, thereby imparting longerintake strokes just prior to reaching those outlets through which alarger flow is desired. The casing 6 may also be utilized as a reservoirfor the supply of oil, instead of, or in addition to the pipe connection8, using the sight opening as as a filling opening. In that case anaperture may as shown in Fig. 5 be made through the disk portion of thepump carriage 21 to permit the oil to How from the reservoir to thedistributing channel 11.

It will be understood that the present invention, although hereinspecifically shown and described in a form suitable for use inconnection with automobiles, is capable of adaptation for use withengines and other machines in which it is desirable to supplylubricating or other fluid independently to each of several bearings, orother places.

It will be understood that the parts herein shownmay be modified in manyways, in form and relative position and time or se quence of operationto adapt them to difierent environments or different conditions ofservice.

I claim as my invention 1. A pump device, having in combination aplurality of outlet ports, a reciprocating pump having abutment engagingmembers for its opposite strokes disposed in two different pathways,means for moving the pump to carry its discharge opening successivelyinto register with the said outlet ports, and two series of drivingabutments for the pump respectively disposed in the said pathways.

2. A pump device, having in combination a plurality of outlet ports, areciprocating pump having abutment engaging members for its oppositestrokes disposed in diiferent pathways, a carriage on which the pump ismounted, means for rotating the carriage, and two sets of abutmentsagainst which the said abutment engaging members of the pump are carriedby the rotations of the carriage, the abutments for discharging the pumpcontents being disposed so as to effect the discharge movement of thepump at each of the said outlet ports in succession.

3. A pump device, having in combination a plurality of outlet ports, areciprocating pump having abutment engaging members for its oppositestrokes disposed in different pathways, a carriage on which the pumpmounted, means for rotating the carriage, and two sets of abutmentsagainst which the said abutment engaging members of the pump are carriedby the rotations of the carriage, the abutments for discharging the pumpcontents being disposed so as to effeet the discharge movement of thepump at each of the said outlet ports in succession, and means forindependently adjusting the abutments of one of the said sets forvarying the discharging capacity of the pump for the respective outletports.

A. A pump device, having in combination a rotating pump carriage, pumpmechanism appurtenant to the carriage and having a combined intake anddischarge opening arranged eccentrically to the center of rotation, totravel in a pathway around that center, a plurality of inlets andoutlets arranged in alternate succession in the pathway of the saidopening, means operable by the rotation of the carriage to draw anddischarge through the inlets and outlets respectively, fixed abutmentsfor imparting positive discharging movements to the pump mechanism, andadjustable screws for varying the working stroke of the pump mechanismindependently with relation to the different outlets.

5. A pump device, having in combination a rotating pump carriage, pumpmechanism appurtenant to the carriage with its discharge openingrevolving around the center of rotation of the carriage, a plurality ofinlets and outlets arranged in alternate succession adjacent to thecircular pathway of the discharge opening, means operable by therotation of the pump carriage for work ing the pump, fixed abutments forimpart- -ing discharglng movements to the pump &

mechanism, and adjustable screws for varying the stroke of the pumpmechanism to independently vary its discharge with relation to each ofthe said outlets.

6. A pump device, having in combination a rotating pump carriage, pumpmechanism appurtenant to the carriage, having a discharge openingeccentric to the center of rotation, a plurality of inlet and outletports situated in alternate succession adjacent to the pathway of thedischarge opening, and means operable by the rotation of the pumpcarriage for working the pump mechanism including fixed abutments forimparting positive discharging movements to the pump mechanism, andadjustable screws tor varying the suction movement of the pumpindependently for each inlet port to vary the capacity of the pumpindependently with relation to the respective outlet ports.

7. A pump device, having in combination a rotating pump carriage, pumpmechanism appurtenant to the carriage, including a pump chamber, apiston therein, abutments for moving the piston in one direction, alever appurtenant to the carriage and engag ing with the piston, andabutments engaging with the lever to move the piston in the oppositedirection.

8. A pump device, having in combination a rotating pump carriage, pumpmechanism appurtenant to the carriage, including a pump chamber, apiston therein, abutments for moving the piston in one. direction, alever appurtenant to the carriage and engaging with the piston,abutments engaging with the lever to move the piston in the oppositedirection, and a plurality of outlets arranged in succession adjacent tothe path of the opening of the pump, to register therewith at thesuccessive discharging movements of the piston.

9. A pump device, having in combination a rotating pump carriage, a pumpmechanism appurtenant to the carriage, including a pump chamber, apiston therein, abutments for moving the-piston in one direction, alever appurtenant to the carriage and engaging with the piston,abutments engaging with the lever to move the piston in the oppositedirection, and a plurality of inlets disposed adjacent to the path ofthe intake opening of the pump toregister therewith during thesuccessive intake movements of the piston.

10. A pump deviee,having in combination a rotating pump carriage, pumpmechanism appurtenant to the carriage, including a pump chamber, apiston therein, abutments for moving the piston in one direction, alever appurtenant to the carriage and en gaging with the piston,abutments engaging with the lever to move the piston in the oppositedirection, a plurality of inlets dlsposed adjacent to the pathway of theintake opening of the pump, and registering therewith during the intakemovements of the piston, and a plurality ofoutlets disposed adjacent tothe path of the discharge opening of the pump and registering therewithduring the successive discharging move ments of the piston.

In testimony whereof I-have-signed my name to this specification in thepresence of two subscribing witnesses this 13th day of 7 August, 1906.

FRANK W. KNOTT. \Vitnesses J. P. FEELY, Jr., ANNA I-I. HEINRICH.

Copies of this patent may be obtained for five cents each, by addressingthe F, Gommissioner of Patents. Washington, D. G.

